Crankless engine



Patented July l, 1930 gines.

iJNiTi-:Df STATES THOMAS LoUIs SHERMAN, on NEW YORK, N. Y.,^AssIGNoR TovMIcHELL-CRANKLRSS JtNeINiasV coRPoRA'rroN, or vNEW YORK, lN. Y.,A CORPORATION `or* NEW .YORK

eRANxLEss ENGINE Application med Novemter 2, 192e. semaine.V 316397. f

lThis invention relateskto cranklessA en- More` particularly stated, the invention relates to means for guiding or restraining f vide a slipper connection or mounting' so the motion of the slippers in a crankless engine which form the bearing element between the reciprocating members `or pistons andthe rotary member," such as a' slant o'r swash plate. The invention has for its salient object to provide Vguiding' or restrainingV means for the slippers vso constructed and arranged that unduefriction and wearl will be reduced to a minimum.

Another object of the invention 1s to proconstructed and arranged as. to provide for pivotal movement ofk the slipper about a plurality of axes with a mlnlmum amount of i friction and wear.

pear from the following specification taken in connection with the drawings, which form a part of this application, and in which Fig. 1 is a longitudinal sectional elevation showing a piston and slant or swash plate and slipper structure constructed in accordance with the invention; s

AFig.` 2 is a sectional elevation taken substantially on line 2 2 of Fig. l;

Fig. 3 is a sectional elevation taken substantially on line 3 3' of Fig. 1.

Fig. 4 is a viewsimilar to Fig. 1 but illustrating a `slightly different embodiment g of the invention; and

per is guided and restrained in its motion by a pivotal and slidable connection with an extension connected to the piston in such a manner as to reduce thek friction and wear to a minimum. Further details of this connection and of the restraining and guidingl means' will appear from the following specification.

The slipper guiding and restraining means is utilized in an engine of the type illustrated in Michell Reissue Patent No. 15,756,

granted February 5, 1924. Thisrinvention 'In the form k'of the invention illustrated in Figs. 1"'to`3- inclusive, there-is shown a pair of pistons 10`andcl1=connected bya yoke l12. A portion of' a swash lplateor slant'fl is shown between the pistons and beneath the yoke 12. A pair of-slippers 16 and`17 engage the oppositefaces of the'slant 15 and arev provided with spherical bosses 20 and 21, which engage spherical sockets orbearing'members 23 and 24 carried by the inner ends of the pistons. v The slippers 16 `and 17 are provided with laterally extending studs or'pins 25 and 26.V Thepinf25 extends through a longitudinal slot 30 in the yoke 12 and has mountedV thereon a ball 31. The ball Slis positionedv in a cylindrical tube 32 having a slot conforming posed in a cylindrical opening in the yoke 12. By means of this mounting it will be yin shape and extent with the slot 30 and disevident that pivotal'movement of theV slip- `per is permitted on a plurality of axes, but that the slipper will be prevented from undesirable pivotal or krotational movement about the axes C-C of the A'reciprocable member or piston. Y

Ity will be understood thatnboth slippers can be mounted in the manner above described and as shown in Fig. 2, but inv the formof lthe invention illustrated in Fig. 3 and shown in connection with rthe slipper 16, the yoke 12 has. a longitudinal rectangular opening 40 therein, in which isypositioned av tube 41 rectangular in cross section. The tube 41 has a longitudinal slot 42 through which extends the pin v26 onf-the Slipper 16.V A' ball 43 is mounted on the pin and isdisposed between spherical bear'- ing surfacesof a bearing` block comprising sections 46 and 47 which are connected toro Y f If, desired, the cylindrical .tubular-uneinlber lehown in. Fig. f2, and the rectangular" e getheA in any" suitable manner, as "by 'rivets Agende), Y

tubular member 41shown in Fig.k 3, may be f f dispensedwitli `and "the-ball 31'` andl bearing f l.Althoughcertain specific-,einb

" i mounted directly.n-openingsV of lthe-proper 'shapejformed 1in theyokeY 12.

the Slipper-52.

thQbl'Ock, formedtbyftliesections '53' and 63a.

rfa-Casini., Slot i60,

of the fblockis'f preferably Curved5ea$fshew1 ftheiinverlton have been: particularly `'willow- 1 1 Y and describeditwilhbe undei'jstoodthat tlieVV invention is capable;ofilnodilicationjandtliat' changes `lin the; constljuction r in the arrangement of tlie `various cooperating1 parte maybe; made;"Without departing" tromV .the

spirit orfs'cope ofthe invention,' aswexp'ressed inthe follotvngzclams. i: Y

l. combination Va slant,af'greeiprdcable feljexnent,` aslipperl articulated to said element jhavinga `llilloricateid ivorking eontact" vyvith thelfslafnt,fan extenslionon sad'jrecpro-1 imitan eabiegeiemet haengt@ mandi-ien 'nearing P ffs'urfacegfa on Said slipper,r and a Abearing 'eleinent Said fprojectionftting the bearingurfaee-ofSaid extent-fion.

Tlflkj nient-and havingla*lubricated*Worklng'con- Yhaving a circular bearing Contact with said extension;

3. VIn combination a Slant, a reciprocable element,` a'slpper articulated to said element and havinga lubricated Working yContact with the slant, ann extension on eaid reciprooillvfi` elerne'nt, `ai cylindrical 'study :projecting frompsaid'slipper, a spherical bearing elefnnt on said stud,l and a pivotal and sliding connection' `betweensaid bearing element.' and Saldfeitensionf :fiti 3J-f j .11 t

41. In combination a slant, a reciplocable andliaving a lubricated Working Contact withtlesl'antfan extension on said recipro- `ca bleelenient having ag longitudinal; opening therein, anda slot communicating Withfsfaid opening,an studl on'aid slipper projecting through vsaid elotftoL thel opening, and a ballfpitoted on the stud slidavbly"inlountV edin said"opening.4

, element, anl slipper articulated to `vsaid *element 4Wi'tli"tlie slant, an extension on Saidreciprof cable? element; a studP -proj ectingL from jfs aid slipper; 'Sp-inmitten@ Aelement pi'vdteei O11 sadisme; and, @envoie arid Sliding @Qinnec'tionv between said befyaringl element and elenentfa 'slippenarticulatedfto said ele`- Y slipper,acylindrical bearing snrfacein' said exten'sion','andf `a` 'sphericalv member' on: said A`pifojectiofn 'difspo'sedV said'cylndrical rbear- 7In1combinationa Slant, reciprocable elernenu'a slipperariticulated to saidl element andV liaingf al Y lnbricated *Working*y Contact with the-Slant, anfextension on s aidjreciprocable eleinent,-` a 'p:rojectionV on 'said' elipper, said extensionfliaifingfalongitudinally extendine` tubular openingA therein,` and a ball on -saidy projection :disposed 'in said openinoz n 8. `In combination a slant;V 'a reciproc'abe r i "eljementgaelipper articulated to said element i andfhavng a lubricatedv iiforling- Contact With tlieelant, an extension on said'reeipro! cable 'eleinent,` proj ectionf on' Vsaid'A slipper, said extenslon hat/Inga"longitudinally"extending' tubular opening thereinand ball 'y1 Inount'edf on` vsaid projection disposedln'sald opening.

{igTHoMAe Louie eHEnMA-N.

elelnentl,ajelipperarticulatedto -said element if C *and i'having@ailubricatedfWorking Contact 1f with theltslant, an Oez'rtension Non eaid frecipiof i 

